[Client bug]Floating block edge

Detailed Description of Issue: Sometimes a floating block edge can be seen where such a block never even existed.
This block edge cannot be removed by tools, but can be interacted with by movement (ae. wallcrawl on it), but only from the side of the edge. If you look from any other side(as if you would be looking through the block) the edge cannot be seen and also cannot be interacted with, even with movement.

Reproducible? How difficult is it to reproduce?
Random. Cannot manually reproduce.